, ( 3) ( ) . g0=0, b0=0 Y0 = g0+jb0. (10) (12) :
(13)
, ; ,
3 - :
Ca=Cb=Cc= .. ba=bb=bc=b :
, . . ra=rb=rc, , ga=gb=gc=g,
Z=1/Y Rch=1/Gch,
(14)
, , , , .
1 , . Y=g Z=r, .. , , :
(15)
(15) : r, , , .
, , . . | Z | >> Rch, (14) :
(16)
, , .
. 380 ( 220), r = 100 ( ), , Z = r =100 , , R = R =0, Rch = Rh =l . , , , (16)
(15) Ih = 6.4 , .
, , , , . , , . , .
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, | Z | << Rch. (14) :
(17)
. . , , .
380 ( U =220) , , 220 . | Z | < 10 , , , , : Ih >50 .
1000 , . Ca=Cb=Cc =, ba=bb=bc=b Z=-jx, . , , (14) :
(18)
;
4 -
. 6000 ( 3460) Ca=Cb=Cc =0,03 50 , x=96 , . , R = R =0, Rch = Rh =l . , , (18)
, 1 , , , .
(, ) (. 4, ) , , . . (10), r=R3, g/=G3=1/R3 ,
G3 >> | Ya+ Yb+Yc+Y0 | I=U[Yb+(1-a2)+Yc(1-a)+Y0] (19)
(19) , R3 ( G3).
Y0=0 Ya=Yb=Yc=Y=1/Z,
( ) :
(20)
| Z | >> R3, .
; ;
5 -
(9) , . . G3 >> | Ya+2Yb+Yc | G3 >> | Ya+ Yb+Yc+Y0 |
(21)
. . . (5) (17) (18):
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(22)
(23)
. 4, .
. , ( ), , , :
, : 380 380, 660 660 ..
(. 5) , , . :
(24)
G0 >> | Yb(1-2)+Yc(1-) | G0 >> | Ya+ Yb+Yc | (25)
, , (11) , , :
(26)
, 10 , 1000 . :
(27)
, , , , , , . R, () R .
(. 5, ). (11), (24) (25):
(28)
:
(29)
:
(30)
(29) (30) , Ub3 U0 Ub .
(6) (7) (8):
(31)
:
(32)
, ( ) , , , , . , 5, .
. 380 . R = R3 =18 . R =4 . (28):
(29):
(30):
(32):
22 .
. 1000 , 1000 . , . 1000 (110750) . ; .
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